40041838508385 has 32 divisors (see below), whose sum is σ = 73221580864512. Its totient is φ = 18304285705920.

The previous prime is 40041838508381. The next prime is 40041838508429. The reversal of 40041838508385 is 58380583814004.

It is not a de Polignac number, because 40041838508385 - 2² = 40041838508381 is a prime.

It is a super-2 number, since 2×40041838508385² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40041838508381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2287599 + ... + 9236708.

It is an arithmetic number, because the mean of its divisors is an integer number (2288174402016).

Almost surely, 2^{40041838508385} is an apocalyptic number.

It is an amenable number.

40041838508385 is a deficient number, since it is larger than the sum of its proper divisors (33179742356127).

40041838508385 is a wasteful number, since it uses less digits than its factorization.

40041838508385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11557413.

The product of its (nonzero) digits is 14745600, while the sum is 57.

The spelling of 40041838508385 in words is "forty trillion, forty-one billion, eight hundred thirty-eight million, five hundred eight thousand, three hundred eighty-five".